/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.android.exoplayer2.metadata.id3;

import static com.google.android.exoplayer2.util.Util.castNonNull;

import android.os.Parcel;
import android.os.Parcelable;
import androidx.annotation.Nullable;
import com.google.android.exoplayer2.MediaMetadata;
import com.google.android.exoplayer2.util.Util;

/** Text information ID3 frame. */
public final class TextInformationFrame extends Id3Frame {

  @Nullable public final String description;
  public final String value;

  public TextInformationFrame(String id, @Nullable String description, String value) {
    super(id);
    this.description = description;
    this.value = value;
  }

  /* package */ TextInformationFrame(Parcel in) {
    super(castNonNull(in.readString()));
    description = in.readString();
    value = castNonNull(in.readString());
  }

  @Override
  public void populateMediaMetadata(MediaMetadata.Builder builder) {
    switch (id) {
      case "TT2":
      case "TIT2":
        builder.setTitle(value);
        break;
      case "TP1":
      case "TPE1":
        builder.setArtist(value);
        break;
      case "TP2":
      case "TPE2":
        builder.setAlbumArtist(value);
        break;
      case "TAL":
      case "TALB":
        builder.setAlbumTitle(value);
        break;
      case "TRK":
      case "TRCK":
        String[] trackNumbers = Util.split(value, "/");
        try {
          int trackNumber = Integer.parseInt(trackNumbers[0]);
          @Nullable
          Integer totalTrackCount =
              trackNumbers.length > 1 ? Integer.parseInt(trackNumbers[1]) : null;
          builder.setTrackNumber(trackNumber).setTotalTrackCount(totalTrackCount);
        } catch (NumberFormatException e) {
          // Do nothing, invalid input.
        }
        break;
      case "TYE":
      case "TYER":
        try {
          builder.setYear(Integer.parseInt(value));
        } catch (NumberFormatException e) {
          // Do nothing, invalid input.
        }
        break;
      default:
        break;
    }
  }

  @Override
  public boolean equals(@Nullable Object obj) {
    if (this == obj) {
      return true;
    }
    if (obj == null || getClass() != obj.getClass()) {
      return false;
    }
    TextInformationFrame other = (TextInformationFrame) obj;
    return Util.areEqual(id, other.id)
        && Util.areEqual(description, other.description)
        && Util.areEqual(value, other.value);
  }

  @Override
  public int hashCode() {
    int result = 17;
    result = 31 * result + id.hashCode();
    result = 31 * result + (description != null ? description.hashCode() : 0);
    result = 31 * result + (value != null ? value.hashCode() : 0);
    return result;
  }

  @Override
  public String toString() {
    return id + ": description=" + description + ": value=" + value;
  }

  // Parcelable implementation.

  @Override
  public void writeToParcel(Parcel dest, int flags) {
    dest.writeString(id);
    dest.writeString(description);
    dest.writeString(value);
  }

  public static final Parcelable.Creator<TextInformationFrame> CREATOR =
      new Parcelable.Creator<TextInformationFrame>() {

        @Override
        public TextInformationFrame createFromParcel(Parcel in) {
          return new TextInformationFrame(in);
        }

        @Override
        public TextInformationFrame[] newArray(int size) {
          return new TextInformationFrame[size];
        }
      };
}
